Maybe this has been done before. Maybe not. I'm fascinated by word and phrase origins. Expressions people use like: - Wet your whistle. - Sleep tight. - Tongue in cheek. - Top brass. For instance, I've heard a number of seemingly plausible explanations for "the whole nine yards." - 9 square yards of main sail on a wooden ship. - 9 cubic yards of capacity in an oldschool dumptruck. - Something to do with a bolt of fabric. - 27 feet of belted ammo in each wing of a WWII fighter plane (surely my favorite). Rather than viewing pasted citations from OED or wikipedia, I'm more interested in collective lore. Should be no shortage of opinions here I reckon.